Home / 131,789.79-181,882.94-75,209.67

Finding the Fourth Proportional to 131,789.79, 181,882.94 and 75,209.67

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Solution

The fourth proportional to 131,789.79, 181,882.94 and 75,209.67 is: 103,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,789.79 : 181,882.94 = 75,209.67 : x
  2. Step 2: Convert to fraction form
    131,789.79/181,882.94 = 75,209.67/x
  3. Step 3: Cross multiply
    131,789.79x = 181,882.94 × 75,209.67
  4. Step 4: Simplify right side
    131,789.79x = 13,679,355,519.98
  5. Step 5: Solve for x
    x = 13,679,355,519.98/131,789.79
  6. Step 6: Final answer
    x = 103,796.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.